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SubjectRe: [PATCH 03/12] net: mana: Handle vport sharing between devices
On Tue, 17 May 2022 02:04:27 -0700
longli@linuxonhyperv.com wrote:

> diff --git a/drivers/net/ethernet/microsoft/mana/mana.h b/drivers/net/ethernet/microsoft/mana/mana.h
> index 51bff91b63ee..26f14fcb6a61 100644
> --- a/drivers/net/ethernet/microsoft/mana/mana.h
> +++ b/drivers/net/ethernet/microsoft/mana/mana.h
> @@ -375,6 +375,7 @@ struct mana_port_context {
> unsigned int num_queues;
>
> mana_handle_t port_handle;
> + atomic_t port_use_count;

Could this be a refcount_t instead?
The refcount_t has protections against under/overflow.

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